Enhanced self-biased direct and converse magnetoelectric effect in Pb(In1/2Nb1/2)O3–PbTiO3/NiFe2O4 bi-layer laminate composite

Abstract

The direct magnetoelectric (DME) effect and converse magnetoelectric (CME) effect are investigated in bi-layer ferroelectric [0.65 Pb(In 1/2 Nb 1/2 )O 3 -0.35 PbTiO 3 ]-ferrite [NiFe 2 O 4 ] laminate composite prepared by epoxy bonding. The magnetoelectric (ME) properties of bi-layer composite is studied at low frequency (1 kHz) and at electromechanical resonance frequencies under external bias field (H dc ). The laminate composite shows a DME coefficient (a DME ) and CME coefficient (a CME ) of 103 mV/ (cm Oe) and 0.04 (mG cm)/V respectively at 1 kHz with a H dc of 110 Oe. Moreover the a DME and a CME shows nonzero value in the absence of external bias field, which signifies the presence of self-biased ME effect in this laminate composite. Under resonance condition, ME coupling enhanced two orders of magnitude compared to low frequency value. A large self biased a DME of 8 V/(cm Oe) and a CME of 5 (mG cm)/V is achieved at electromechanical resonance.

Strategic Design and Analysis of Energy Storage and ME Applications of Low Temperature Hybrid Microwave Sintered Electroceramic Composites

“…The dielectric properties of composites and pure PZT are obtained in the frequency range of 1000 Hz to 1 MHz using a HP 4192A impedance analyzer. The dynamic ME measurements are performed using an experimental setup developed in-house and described in detail elsewhere …”

“…The dynamic ME measurements are performed using an experimental setup developed in-house and described in detail elsewhere. 29 ■ RESULTS AND DISCUSSION ). It shows no significant chemical interactions or atomic diffusion between the two phases during the ball milling and sintering processes.…”

Self‐biased magnetoelectric composite for energy harvesting

“…To avoid the chemical defects and uneven composition caused by cofiring, Kumar et al prepared a PIN-PT/NFO [0.65Pb(In 1/2 Nb 1/2 )O 3 -0.35PbTiO 3 ]/NiFe 2 O 4 layered composite by epoxying and found a large α SME (8 V cm −1 Oe −1 ) at the radial mode resonance. 93 Doping can effectively improve the piezomagnetic coefficient of ferrite. For example, the Sm-doped nickel zinc ferrite presented an apparent hysteresis phenomenon and high dynamic piezomagnetic coefficient.…”

“…Ferrite, especially NiZn spinel ferrite, has become the widely used magnetostrictive phase in ME composites due to its high-temperature stability, large saturation magnetization, and high low-field piezomagnetic coefficient. 73,93 Cofiring technology directly combines the entire oxide magnetostrictive and piezoelectric layers, thereby enhancing the efficient transfer of interface strain. Yan et al implemented cofiring to prepare an ME composite composed of NCZF (Ni 0.6 Cu 0.2 Zn 0.2 Fe 2 O 4 ), textured PMN-PT, and an intermediate Ag electrode.…”

Self-biased Metglas/PVDF/Ni magnetoelectric laminate for AC magnetic sensors with a wide frequency range

“…However, the biased magnetic field not only increases the volume of sensors but also introduces noise [26,27]. Therefore, the researchers used the different methods to induce the self-biased effect, including the stress induction, built-in magnetic field between the different magnetic layers, gradient distribution of composition and so on [18,[28][29][30][31][32][33][34][35][36][37][38][39][40][41][42][43][44][45][46]. In 2019, PourhosseiniAsl et al heated Metglas by laser irradiation to produce microstructure strain and induced a self-biased effect [44].…”